fix manage user product issues

app/Http/Controllers/Admin/ManageUserProductController.php

@@ -910,6 +910,8 @@ class ManageUserProductController extends Controller
             'product_name' => $request->product_name,
             'class_of_units' => $request->class_of_units,
             'fund_category' => $request->fund_category,
+            'created_at' => Carbon::now(),
+            'updated_at' => Carbon::now(),
         ]);
 
         $statementReportsArray = array();